Blackberry plant named &#39;Columbia Giant&#39;

ABSTRACT

A new and distinct blackberry cultivar that originated from seed produced from a cross between the female blackberry plant ‘NZ 9629-1’ (unpatented) and the male parent blackberry plant ‘ORUS 1350-2’ (unpatented). This new blackberry cultivar can be distinguished by its high yields of extremely large and very uniformly shaped berries with very good firmness, color, and flavor and that are borne on vigorous, completely thornless trailing plants.

Latin name of the genus and species of the plant claimed: ‘COLUMBIA GIANT’ is a blackberry plant that is Rubus subg. Rubus Watson.

Variety denomination: The new blackberry plant claimed is of the variety denominated ‘Columbia Giant’ Rubus subg. Rubus Watson.

BACKGROUND OF THE INVENTION

The present invention relates to a new and distinct blackberry cultivar designated ‘Columbia Giant’ and botanically known as Rubus subg. Rubus Watson. This new blackberry cultivar was discovered in Corvallis, Oreg. in July 2008 and originated from a cross between the female blackberry plant ‘NZ 9629-1’ (unpatented) and the male parent blackberry plant ‘ORUS 1350-2’ (unpatented). ‘Columbia Giant's spinelessness is derived from ‘Lincoln Logan’ (unpatented) that can be found as a parent four and five generations back in ‘Columbia Giant's pedigree. ‘Columbia Giant’ was selected from the same population as ‘Columbia Star’ (U.S. patent application Ser. No. 13/815,074, now U.S. Plant Pat. No. 25,532). The original seedling of the new cultivar was asexually propagated at a nursery in Benton County, Oreg. The new cultivar was established in vitro from a cane cutting and microcuttings have been taken and rooted from this sort of culture. The present invention has been found to be stable and to reproduce true to type through successive asexual propagations.

BRIEF DESCRIPTION OF THE PHOTOGRAPHS

This new blackberry plant is illustrated by the accompanying photographs that show the fruit of the plant and machine harvested fruit, as well as canes and entire plants; the colors shown are as true as can be reasonably obtained by conventional photographic procedures.

FIG. 1. shows a section of a spineless primocane and a leaf.

FIG. 2. shows flowers on the plant.

FIG. 3. shows typical fruit in a fruit cluster in the field.

FIG. 4. shows an entire 4-year old plant.

DETAILED DESCRIPTION OF THE NEW VARIETY

The following description of ‘Columbia Giant’ is based on observations taken from 2011 to 2014 growing seasons in trials in Corvallis and Aurora, Oreg. This description is in accordance with UPOV terminology. Color designations, color descriptions and other phenotypical descriptions may deviate from the stated values and descriptions depending upon variation in environmental, seasonal, climatic and cultural conditions. ‘Columbia Giant’ has not been observed under all possible environmental conditions. Color terminology follows The Royal Horticultural Society Colour Chart. London (R.H.S.) (5^(th) edition, 2007).

Table 1 shows plant characteristics of the new cultivar. Characteristics include plant vigor growth habit, date of budbreak, timing of primocane emergence, winter tolerance in Aurora, Oreg. (45° 16′ 49″ N / 122° 44′ 50″ W), and winter tolerance in Lynden, Wash. (48° 56′ 48″ N / 122° 27′ 2″ W).

TABLE 1 Plant Characteristics of ‘Columbia Giant’. Characteristic Columbia Giant Plant vigor High compared to Black Diamond Growth habit Trailing Date of budbreak 27 March Timing of primocane Early to medium compared emergence to Black Diamond Winter tolerance in Very good-excellent Aurora, Oregon (better than Marion) (45° 16′ 49″ N/122° 44′ 50″ W) Winter tolerance in Good-very good Lynden, Washington (better than Marion) (48° 56′ 48″ N/122° 27′ 2″ W)

Table 2 shows floricane and mature primocane characteristics of the new cultivar. Characteristics include diameter at base, diameter at midpoint, diameter at terminus, internode length at base, internode length at midpoint, internode length at terminus, presence of spines further than 0.6 m from the soil surface, presence of spines less than 0.6 m from the soil surface, floricane color at base, floricane color at midpoint, floricane color at terminus, floricane lateral length, floricane lateral strength; primocane color at base, primocane color at midpoint, primocane color at terminus, and floricane length (range).

TABLE 2 Floricane and Mature Primocane Characteristics of ‘Columbia Giant’. Characteristic Columbia Giant Diameter at base 1.17 cm Diameter at midpoint 0.84 cm Diameter at terminus 0.19 cm Internode length at base 3.35 cm Internode length at midpoint 6.32 cm Internode length at terminus 3.95 cm Presence of spines further than Absent 0.6 m from the soil surface Presence of spines less than Absent 0.6 m from the soil surface Floricane color at base 144A Floricane color at midpoint 144A Floricane color at terminus 144B Floricane lateral length Medium-long Floricane lateral strength Medium Primocane color at base 144A with overtones of 185B Primocane color at midpoint 144A Primocane color at terminus 146C Floricane length (range) 2.12-6.22 m

Table 3 shows primocane foliage characteristics of the new cultivar. Primocane characteristics include mature compound leaf width, mature compound leaf length, number of leaflets per primocane compound leaf, mature leaflet shape, mature leaflet apex, mature leaflet base, mature terminal leaflet width, mature terminal leaflet length, mature first lateral leaflet width, mature first lateral leaflet length, leaflet margin, leaflet serration teeth length, leaflet serration teeth width at base, spine presence on leaves, pubescence on primocane leaflet upper surface, pubescence on primocane leaflet undersurface, primocane leaf color abaxial, primocane leaf color adaxial, petiole length, petiole color: upper surface, petiole color: undersurface, petiolule length terminal leaflet, petiolule length first distal leaflet, petiolule color abaxial, petiolule color adaxial, stipule length, stipule width, and stipule attitude. Fruit is borne only on floricanes.

TABLE 3 Primocane Foliage Characteristics of ‘Columbia Giant’. Characteristic Columbia Giant Mature compound leaf width 21.70 cm Mature compound leaf length 18.50 cm Number of leaflets per Usually 5 primocane compound leaf Mature leaflet shape Ovate Mature leaflet apex Broadly acuminate Mature leaflet base Cordate Mature terminal leaflet width 8.47 cm Mature terminal leaflet length 11.88 cm Mature first lateral leaflet width 6.35 cm Mature first lateral leaflet length 10.53 cm Leaflet margin Double serrate Leaflet serration teeth length 0.31 cm Leaflet serration teeth width at base 0.28 cm Spine presence on leaves Absent Pubescence on primocane leaflet: Light upper surface Pubescence on primocane leaflet: Light undersurface Primocane leaf color abaxial 137C Primocane leaf color adaxial 148B Petiole length 8.68 cm Petiole color: upper surface 144C with gradation to 177B Petiole color: undersurface 145A Petiolule length: terminal leaflet 2.61 cm Petiolule length: first distal leaflet 0.80 cm Petiolule color: abaxial 146B Petiolule color: adaxial 145A Stipule length 2.11 cm Stipule width 0.17 cm Stipule attitude Crossed near base and curled

Table 4 shows floricane foliage characteristics of the new cultivar. Floricane characteristics include mature compound leaf width, mature compound leaf length, number of leaflets per floricane compound leaf, mature leaflet shape, mature leaflet apex, mature leaflet base, mature terminal leaflet width, mature terminal leaflet length, mature first lateral leaflet width, mature first lateral leaflet length, leaflet margin, leaflet serration teeth length, leaflet serration teeth width at base, pubescence on floricane leaflet: upper surface, pubescence on floricane leaflet undersurface, floricane leaf color abaxial, floricane leaf color adaxial, petiole length, petiole color adaxial, petiole color abaxial, petiolule length terminal leaflet, petiolule length first distal leaflet, petiolule color abaxial, petiolule color adaxial, stipule length, and stipule width.

TABLE 4 Floricane Foliage Characteristics of ‘Columbia Giant’. Characteristic Columbia Giant Mature compound leaf width 16.67 cm Mature compound leaf length 9.81 cm Number of leaflets per floricane Usually 3 compound leaf Mature leaflet shape Ovate Mature leaflet apex Broadly acuminate Mature leaflet base Ovate Mature terminal leaflet width 5.30 cm Mature terminal leaflet length 7.85 cm Mature first lateral leaflet width 4.0 cm Mature first lateral leaflet length 6.55 cm Leaflet margin Double serrate Leaflet serration teeth length 0.28 cm Leaflet serration teeth width at base 0.39 cm Pubescence on floricane leaflet: Light upper surface Pubescence on floricane leaflet: Light undersurface Floricane leaf color abaxial 146B Floricane leaf color adaxial 147C Petiole length 7.22 cm Petiole color adaxial 144C Petiole color abaxial N144D Petiolule length: terminal leaflet 1.96 cm Petiolule length: first distal leaflet 0.26 cm Petiolule color: abaxial 144C Petiolule color: adaxial N144D Stipule length 1.04 cm Stipule width 0.09 cm

Table 5 shows flower and flowering characteristics of the new cultivar. Flower and flowering characteristics include date 1^(st) bloom, date full bloom, date last bloom, petal color, number flowers per cluster, number of petals per flower, flower diameter, petal length, petal width, number of sepals per flower, peduncle length, rachis length, peduncle color, and cyme type.

TABLE 5 Flower and Flowering Characteristics of ‘Columbia Giant’. Characteristic Columbia Giant Date 1^(st) bloom 4-May Date full bloom 11-May Date last bloom 42145 Petal color 157C Number flowers per cluster 7.33 Number of petals per flower 5.83 Flower diameter 4.23 cm Petal length 1.43 cm Petal width 0.91 cm Number of sepals per flower 6.17 Peduncle length (cm) 25.69 cm Rachis length (cm) 9.08 cm Peduncle color 146B Cyme type Simple

Table 6 shows fruit and fruiting characteristics of the new cultivar. Fruit and fruiting characteristics include date 5% of fruit were ripe, date 50% of fruit were ripe, date 95% of fruit were ripe, weight of primary fruit, weight of secondary fruit, weight of tertiary fruit, diameter of primary fruit at equator, diameter of 2° fruit at equator, diameter of 3° fruit at equator, diameter of 1° fruit at poles: tip, diameter of 1° fruit at poles: base, diameter of 2° fruit at poles: tip, diameter of 2° fruit at poles: base, diameter of 3° fruit at poles: tip, diameter of 3° fruit at poles: base, berry length primary fruit, berry length 2° fruit, berry length 3° fruit, ratio of primary fruit length to width, shape description, uniformity of berry shape, color when full ripe, number of drupelets per fruit, drupelet weight, individual seed weight, glossiness, firmness, flavor, texture of fruit when chewed, drupelet skin resistance to abrasion, ease of separation of fruit from pedicel, machine harvestability, resistance to heat damage of fruit, berries per inflorescence-mean, berries per inflorescence range, soluble solids (%; in brix), pH, titratable acidity (% as citric acid), and yield (actual kg·plt⁻¹).

TABLE 6 Fruit and Fruiting Characteristics of ‘Columbia Giant’. Characteristic Columbia Giant Date 5% of fruit were ripe 25 June Date 50% of fruit were ripe 5 July Date 95% of fruit were ripe 19 July Weight of primary, fruit 14.07 g Weight of secondary fruit 13.27 g Weight of tertiary fruit 14.47 g Diameter of primary fruit at 2.14 cm equator Diameter of 2° fruit at equator 2.00 cm Diameter of 3° fruit at equator 1.97 cm Diameter of 1° fruit at poles: tip 1.17 cm Diameter of 1° fruit at poles: base 1.90 cm Diameter of 2° fruit at poles: tip 1.31 cm Diameter of 2° fruit at poles: base 2.08 cm Diameter of 3° fruit at poles: tip 1.32 cm Diameter of 3° fruit at poles: base 1.91 cm Berry length primary fruit 5.02 cm Berry length 2° fruit 4.67 cm Berry length 3° fruit 4.71 cm Ratio of primary fruit length 2.36 to width Shape description Long conic Uniformity of berry shape Excellent Color when full ripe Mostly 203B with N186C on ~5% drupelets Number of drupelets per fruit 181.70 Drupelet weight 77.0 mg Individual seed weight 26.9 mg Glossiness Medium glossy to dull Firmness Very good Flavor Very good Texture of fruit when chewed Excellent Drupelet skin resistance to Good abrasion Ease of separation of fruit Easy from pedicel Machine harvestability Excellent Resistance to heat damage of fruit Medium to good Berries per inflorescence-mean  7.00 Berries per inflorescence range 5-10 Soluble solids (%; in Brix)  11.25 pH  3.26 Titratable acidity (% as citric acid) 18.5 Yield (actual kg · plt−1)  6.86

COMPARISON WITH PARENTAL AND COMMERCIAL VARIETIES

‘Columbia Giant’ differs from the female parent ‘NZ 9629-1’ (unpatented) in that ‘Columbia Giant’ has medium-sized, glossy, very large fruit (12-17 g), while ‘NZ 9629-1’ has slightly pubescent fruit that are smaller (4.5 g).

‘Columbia Giant’ differs from the male parent blackberry plant ‘ORUS 1350-2’ (unpatented) in that it is spineless, has conic berries with excellent flavor, while ‘ORUS 1350-1’ (unpatented) is spiny and has barrel shaped berries with poor flavor.

‘Columbia Giant’ differs from the commercial variety ‘Marion’ (unpatented) in that ‘Columbia Giant’ is spineless and has large yields of very large, firm, and very uniformly shaped fruit while ‘Marion’ is spiny and bears medium yields of medium sized, and soft fruit that are unevenly shaped. ‘Columbia Giant’ differs from the commercial variety ‘Black Diamond’ (unpatented) in that ‘Columbia Giant’ carries the ‘Lincoln Logan’ (unpatented) source of spinelessness and therefore the canes are completely spineless and the plants are vigorous with fruit that are very large and have excellent, aromatic flavor, while ‘Black Diamond’ (unpatented) carries the ‘Austin Thornless’ (unpatented) source of spinelessness and so has spines on the base of the canes and the plants are not vigorous and they produce large fruit with a mild flavor. ‘Columbia Giant’ differs from the commercial variety ‘Columbia Star’ (U.S. patent application Ser. No. 13/815,074, now U.S. Plant Pat. No. 25,532) based predominantly on a fruit size. ‘Columbia Giant’ fruit ranged from 12.2-16.3 g with mean primary fruit size of 14.1 g while ‘Columbia Star’ fruit ranged from 6.0-10.5 g with mean primary fruit size of 9.7 g. 

I claim:
 1. A new and distinct cultivar of blackberry plant, substantially as illustrated and described, characterized by its high yields of extremely large and very uniformly shaped berries with very good firmness, color, and flavor and that are borne on vigorous, completely thornless trailing plants. 